Pokémon/Pokédex/Seadra

TM/HM

 * RB/Y/GS/C/RS/FL: Blizzard, Double Team, Hyper Beam, Rest, Surf, Toxic
 * RB/Y/C/RS/FL: Ice Beam
 * RB/Y/GS/C: Swift
 * GS/C/RS/FL: Attract, Frustration, Hidden Power, Protect, Rain Dance, Return, Waterfall
 * RB/Y: Bide, Bubblebeam, Double-Edge, Mimic, Rage, Skull Bash, Substitute, Take Down, Water Gun
 * GS/C: Curse, Dragonbreath, Endure, Headbutt, Icy Wind, Sleep Talk, Snore, Swagger, Whirlpool
 * RS/FL: Dive, Facade, Hail, Secret Power, Water Pulse

Evolution

 * GS/C/RS/FL: Aurora Beam, Disable, Dragon Rage, Flail, Octazooka, Splash
 * RS/FL: Dragonbreath

Trading Cards

 * Fossil #42 - Seadra
 * Gym Heroes #9 - Misty's Seadra
 * Neo Genesis #48 - Seadra
 * Aquapolis #58 - Seadra
 * EX Dragon #39 - Seadra
 * EX Dragon #40 - Seadra
 * EX Team Rocket Returns #48 - Seadra